Aircraft



FIG. 1 is a top forward perspective view of an aircraft showing our new design;

FIG. 2 is a left side elevation view thereof;

FIG. 3 is a top rear perspective view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a front elevation view thereof; and,

FIG. 8 is a rear elevation view thereof.

The evenly spaced broken lines are for purposes of illustrating portions of the aircraft that form no part of the claimed design. 

CLAIM The ornamental design for an aircraft, as shown and described. 